Hello, there is a little hard plaque on the left trunk, which may have atherosclerosis. The coronary artery supplies the heart's own blood, and severe atherosclerosis or spasm occurs in the coronary artery, which narrows or occludes the coronary artery and leads to myocardial ischemia, hypoxia or infarction. It is suggested to actively use drugs to regulate. To avoid vascular stenosis. I hope my answer is helpful to you, and I wish you health and happiness.